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Static Mixer Dispersion

    • Milad
      Subscriber

      I have a Mixing Case. Liquid Liquid Dispersion, Water(continuous phase), Gasoline(dispersed phase)
      Note: Both Phases at the inlets are continuous and after going through the mixer Gasoline becomes dispersed in the water.
      I want to capture This Process ( Breakage) and Predict the Max Diameter of Drops in the flow.
      I am currently using the Eulerian method to capture the multiphase nature of the flow and k~e for Turbulence.
      Questions
      1. How to Capture the Breakage from continuous to disperse for Gasoline?
      2. How to Find the Maximum Drop Diameter and Distribution of Drops?

    • Rob
      Forum Moderator

      With the Eulerian multiphase model you'll see the second phase disperse (or rise/sink) depending on the set up. For break up or agglomeration you'll need population balance. 

    • Milad
      Subscriber
    • Milad
      Subscriber

      Thank You So much for your answer. could you please expand on what you mean by the settings and the rise/sink? I will upload mine.

       

       I want to emphasize that the gasoline is first a continuous phase and then turns into dispersed after passing through the mixer.

      keeping that in mind, isn't the population balance method for a condition that we have droplets at the inlet and we define them from the inlet (Which we don't have in this case)? am I wrong?

    • Rob
      Forum Moderator

      The Eulerian second phase has a diameter which is either fixed or can vary if using population balance or some other phase change mechanism: each diameter is a different phase if you don't use population balance. What did you set for the phase properties?

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